Upper and foxing pressing machine



Jan. 8, 1935. 1 E. A. WlLLEY 1,937,173

UPPER AND FOXING PRESSING MACHINE Filed Aug. 27, 1950 5 Sheet-Sheet 1 Jan. 8, 1935.

E. A. WILLEY UPPER AND FOXING PRESSING MACHINE Filed Aug. 27, 1930 Jan. 8, 1935. Y E. A. WILLEY UPPER AND FOXING PRESSING MACHINE Filed Aug. 27, 1950 5 Sheets-Sheet 3 INVENTOR.

v FIG-.6. v

I B art 46b 42 ATTO EY' Jan. 8, 1935. E. A. WILLEY V UPPER AND FOXING PRES SING MACHINE Filed Aug. 27, 1930 5 Sheets-Sheet 4 FIG. 7.

FIGJO. 0

FIG. 9.

Jan.8,1935. M EY 1,987,173

UPPER AND FOXING PRESSING MACHINE Filed Aug. 27, 1930 5 Sheets-Sheet 5 INVENTOR.

BWE WMWEY ATTORNEY complete upper of gum rubber shoes, and-also Patented Jan. 8, 1935 UPPER AND YFOXING PRESSING MACHINE EdwardqA. Willey, Malden, Mass, .assignor, by mesne assignments, to United- States Rubber Company, New York, N. Y., a. corporation of New Jersey. 7

v 11 Application augustzt;19 30, Seri a1:No.478,015

' 5 Claims. (01. 18-2) My present invention-.relatesto llpp andfoxing pressing machinesand more particularly toan. improved upperxand foxing pressing machine for simultaneously. pressingthe. foxing and footwear. i

In the manufacture of rubber footwear, one of the most' difficultr operationsto perform is the 1 uniform pressing of the component parts in such a manner'as will cause the complete.conso1idation-of all of the elements, that make up the shoe. Particularly is this true with regard to the foxinggand the pressing of thefoxing as well as the pressing of the other portions Lof, the shoe has heretofore been done manually and by means of a hand roller. With hand rolling, it is practically impossiblefor the operator to follow the irregular curves of the'last andapply even, pressure throughoutthe entire area'of the shoe and the result has been that the various elements do notentirely adhere and this :lack of adherence results in theformation ofair pockets; These air pockets produce blistered-and-weakened places after the shoes are vulcanizednand the parts at the blistered places separate when the shoe is flexedl W 1 In my present invention,-I have obviated the difliculties'heretofore experienced in this class of work and have devised a new and improved foxingand upper pressing machine in which all parts of the shoe operated on are; subjected tov an absolutely uniform pressure .and' the pressure may be as great'as. desired, theresult being that the elementsco'nstituting the shoe structure are completely consolidated. Air j bubbles are prevented and separation of portions of the shoe- In the accompanying drawings illustrating a preferred embodiment of our invention Figure 1 is aside elevation; I. Fig. '2 is arfront elevation; Fig. 3 is an enlarged:sectional detail of holdingmean i ates Fig. 4 is a sectional detail showing the cover and safety mechanism associated therewith;

Fig. 5 isa central longitudinal section through one of the pressing cavities showing a shoein position therein'before pressure is appliedthere- Fig. ,6 is a detail showing the fluidinlet Safetymechanism; I Fig. -'7 is a transverse section through the pressing cavities illustrating the pressure bag. under pressure;

; Fig.- 8is a section of construction; 7

. Fig. 9 is a detail of the one-revolution clutch; ,Fig. 10 is a sectional detail of the spring housing for the;cover-contro1 means;

. Fig. 11 is a fragmentary plan view of a por side of the base 10 is mounted a motor 13, the

driveshaft' li of whichis connected to the drive shaft 1510f a speed reducing device 16', this speed reducing device being secured to the baselq by bolts 17. The driven'shaft- 18gof the'speed reducing device 16 has secured at one end thereof a member 19 of a one-revolution clutch.

The shaft 18 of the-speed reducing device 16 is in. alignment with a counter shaft 20 rotatably mounted in bearings 21 formed at the top of bearing standards 22, these bearing standards being secured'to thetop face of the base 10 in any suitable mannen Keyed to, but slidable longitudinally of the counter-shaft 20isa one-revolution clutch member23, this member being provided with a circumferential groove 24. Secured to the base 10 by bolts 25 is a'bracket 26, and formed at the upper end of this bracket is a bearing at which is rotatably mounted a shaft 27. Secured at the inner end of the shaft 2'7 is a lever 28, at the upper free end of which is rotatably mounted a roller 29,that engagesin the circumferential grooves 24 in the one-revolution clutch member 23. Secured to the end of the shaft'27 remote, from the lever 23 is a. .lever and pivotally attached tothe free-end of this lever 30 one end of a connecting rod through a portion of the i gum rubber pressure bag showing the method 31. The other end of this connecting rod is pivotally attached to a lever 32 secured to one end of a; shaft 33 which is rotatably mounted in a bearing 34 formed integral with one of the standards 11. Secured to the shaft 33 at the end thereof remote from the lever 32 is an operating lever 34 and by means of :which the shaft 33 may be rotated. It, will be obvious from an inspection of Fig. 2 that manipulation of the lever 34 will cause a movement of thesliding clutch" member 23 into and out ofengagementwith the cooperating clutch member 19 "and in the position shown in Fig. 2, the members-19 and 23 are out of engagement with eachother, and,

therefore, no motion is transmittedtothe counter i shaft 20.

Secured to the clutch member 23 byscrew 35 and rotatable on such screw is a 'roller' 36. Secured to the base by bolt 37 is a holding stand; ard 38 provided with a vertical slot 39 communicating with the hollow interior of the standard. Mounted for vertical reciprocation in the hollow standard '38 is a shaft 40, the lower end of which is hollowas indicated-at 41to providehousing for a compression-spring 42, which tends to move the shaft 40,into its uppermost position. Formed integral with the shaft '40 and at the upper end thereof is an enlargement 44 that has formed thereona cam 45 whichcamis adapted to engage the'roller 36 carried by the clutch member 23, and, as the clutch member 23 rotates, the

same will be moved to the harass shown in Fig.

9, on engagement'with the cam 45 by the roller 36 to thus move the clutch member 23 out of engagement withthe clutch member 19 and to move the same into position as shown in Fig. 9. ,Extending through the vertical slot 39 and screwing into the shaft 40 is a stud 46. The end. of the stud 46 is engaged by an elongated slot in r operating lever 50. As constructed, it is neces- 45 sary to operate both of the levers 34 and 50 to control the'one-revolution clutch just described. Such detailed construction, however, is not necessary, but has been adopted forthe sake of safety in order to prevent injury to the operator from other parts of the machine to be hereinafter described. In order to operate the machine therefore, as described, the operator must utilize both hands and, therefore, accidental injury is prevented. To operate the one-revolution clutch, theoperat'or will manipulate the lever 50 to move the shaft 40 downwardly against the tension of the spring g42,thus moving the cam 45 out of engagement with the roller 36 on the clutch member 231 The lever 34 is then manipulated to rotate' the shaft 33 and through the linkage 32,31, 30 and-"28' slides the member 23 into engagement with the member 19. v The lever 50 and the lever 34 inay now be'released and power is transmitted to the counter shaft from theshaft 18.

As the counterfishaft 2 0 completes asingle revolution ,"tl1 e"roller-36 thereon will be engaged by thecam 45 which has been moved up into position by the release'of the lever-50 and the clutch member 23 is moved out of engagement with the clutch member 19.

W The platen 121s hollow and openon the bottom and on, the top surface is formed parallelly arranged dovetailed portions 51. 52 designates pressure cavities or, casings, the bases 53 thereof being beveled to engage with thebeveled or dove isrotatably mounted a shaft 60. Extending upwardly and forwardly from the shaft 60 is a cover holder 61;. "Formed integral with the member 61 and extending forwardly therefrom is an arm 62 and the free end of, this arm is pivotally attached to the upper endof an adjustable connecting rod 63. The lower 7 end ,.of the connecting rod 63 is pivotally attached to a lever 64 and this lever at it's'other end is provided with a shaft 65 rotatably'mounted in bearings formed in a bracket 66 attached to theunder face of the platen 12. Intermediate the ends of the lever 64 is a cam roller" 166 adapted 'to'engage in a cam-race 167 formed in one face of a cam 168 that is secured to the'counter shaft 20 and: as-the counter shaft 20 rotates; the upper and forward end vof the member 61 ismoved toward and from the upper open end ofthe pressure cavities 52, asfwill be hereinafter described. 5

Referring to Fig. 5, it will be noted that the interior of the pressure cavities 52 is approximately the shape of a boot'or shoe 67, butis larger'than such boot; or shoe and of interior dimensions sufficient to accommodate several. different sizes.

thereof. Fitting within the interior of each of the pressure cavities 52 is a pressure diaphragm .68

which normally is in relativelyclose engagement with the interior walls of the cavity. Theupper end or edgeof the pressure diaphragm 68 is provided with an accordion plait'69 and the peripheral edgeextends over an upwardly'projectinglip 70 of the pressure-cavities .52 and is held firmly in position by a compression ring 71secured to the pressure cavity 52 by aplurality of bolts 72..

When. in normal position, or the position shown,

in Fig. 5., the upper. edge of the accordion plaits 69 of the pressure diaphragm 68 lies below the upper surface of the compression ring '71,: and

within the compression ring '11 is. adapted to fit theperipheral edge of the actual cover 73.

Resting within the cavityformed inv the pressure cavity 52 and against the surface of the; dia:

phragm 68 is an insert 68- of relatively thick resilientmaterial, such. as soft or sponge rubber, and as will be noted frominspection of Fig. 5, the boot or shoe. 6'! rests onthesurface of suchinsert 68 It is desirable that the diaphragm 68 be resilient, .but practically inextensible and to accomplish this, I preferably make such diaphragm as indicated in Fig. 8 where it will be noted that such diaphragm is composed of a relatively thick layer of rubber 150, a relatively thin layer-of rubconform itself to' lasts of different style and size.

As the pressure within the pressure cavity 52 is increased, the diaphragm 68 and insert 68 will assume the form shown in Fig. '7.

Secured to the underface of the cover-holding member-61 :b'yb'oltsfiAarexcovers 73; while mounted on amt-extending through .the; cover-holding member :61 :are :heel and-sole "engaging. and poSif. tioningmembersrto:be'hereinafter described. The covers'fl3 are cutaway to. allowpassage of such members therethrough.- Boththehee-l and sole engaging and positioning members are .substantially identical :in construction and operation; although the. mounting thereof iszdifferent, but referen'ceds made: to Fig. 3 for a general disclosure thereof; The mounting consistsessentially of a cylindrical member 75in which is slidably mounted ashaft 76.-having. a pivotally mounted shoe or spud :77. at its lowerxend. and'whichis adapted to engagewith the. heel or. thersole of the boot or shoe 67. Extendin'g upwardly'from the member 7611s; a reduoezdgportion: '78. providediwith ahead la-andbetweentheheadan'd the upper surface of the-smember 7.5 is arranged a coil. spring and a washer 81, the spring "80yalways tending to liftthe member 76-into its uppermost position. One side ofthe member. 76 is..-provided witha ratchet 82 adapted to be engaged by. a spring pressed pawl 83 and which pawl is adapted to hold the member 7.6 :in its downwardly adjusted position. Associatedawithtthe. spring pressedlpawl '83 is a pawl re-. lease.:1ever.84 which maybe operated to move the pawl;83 out.of fengagementwith the ratchet 82 and allow the-springaO to function in the usual manner;

- Ordinarilytheheelpf-theboot or shoe 67 to be operated on will come into substantially the same position in the interior of the pressure :cavity '52, but due to variationsrinthe size'of such :boot or shoe, it is necessary to provide adjustment for the sole 1st'op;employed; The method oi adjustmentisillustr-ated in Fig. 11 where it will be, noted that theoover; holding member. 611is provided with an 'elongatedaslot .85 and on, eachedge of this slot issecured ;a..-g,uide:p1ate-86 a-ndonthe guide plates "86- is .slidably mounted aqcarrier member; 87 for the-cylindrical1memberl75. On the cover holding member ,61 :and adjacent to one of the guiding plates:"86 is secured a-rack"88 adapted to be engaged'withga member 89;;associated with the carrierrii'k 1Bya-djustingthe member89 with respect to the. rack 88;, the position ofithe carrier 87 intheslot may be varied'atwill and thecharactenof the1ra,ck,88;and associated member 89 is suohrthat the :carrier 87 will be. retained against ordinary pressurein theposition in which'itmay haverbeen placed. V r v V In operation; theibootor'shoe m is placed in the" pressure :cavity.52. The cover-holding member 61 is rotated above the shaft 60 until the cover 73 into the opening. in'the compressionring '71 and the operator; presses on-theportion -79 of the part '78 to-force the members'lfi downwardly until vthe :membersfl'? engage'with the sole and heel (ofthe boot. setting, i then sufiicientfor-theparticularsize boot-or shoe 67 being worked upon and'untihthersize of;the boot or. shoe being Worked'upon is changed, no further adjustment ofthe-parts referredto is necessary. Asthe counter. shaft'20 rotates, a swingin movementis zimparted at stated intervals I to the cover-holdingv membernfil and thesforward move-. ment is'ext'remely rapid. In order to preventshock to such swingingmember 61 and: the parts carried thereby, I have associated" therewith the following device. 90 designates a lever arm formed integral with and extending" outward from the member filand: the. outer-free end of this lever arm is pivotally attached'at SI to the upper end or a: piston rod 92. 'Ihis piston rod is 'slidably mounted'kwithin a cylinder :93 pivotallyq attached at 9.4.1110 abracket95on the topofthe base 1 0 The lower end: of the piston rod 92 is threadedto receivezarnut ,96 which holds a washer-97 on the piston rod. Surroundingthepiston rod92 and with its lower end in engagement with the upper face of ,the washer '97 is a spring *98. The upper end of the cylinder 93 isthreaded to-re'ceive an counter shaft 20 rotates and-the cover member-61f rotates in a countereclockwise direction byythe' cam on the counter. shaft. any tendencyto pound on the part of the member 61 is preventedby the cushioning effect of the spring 98 so that as the cover 731's brought into its position withrespectto the compression rings 62 the member 61 is practically at rest.- 1

On opposite sides'of the cover memberfil-are formed recesses 1 -01 to allow passage of the upper end of the locking members 102. members engagesurfaces 103 on either side of the passage 101. Formedon the under side of the platen 1'2 and at opposite sidesthereof are alignedbearings 104' in which bearings is tatably. mounted a shaft105. Securedto such shaft and at each end thereof is a gear sector. 10,6 fora purpose to be hereinafter described Se- The locking cured to the shaft 105 intermediate its ends-and extending radially outward therefrom is an arm or'lever 107. The outer free end of thisarmis provided with a rotatable. camroller 108; adapted to be engaged by a. cam race 10 9 in a cam plate 110 that is attached to the counter'shaft20.

Secured .to the opposite erids-of the platen 12 by bolts 111 are vertically extending bearingmembers112and in each of these bearing members is rotatably mountedone of the locking members 102; Secured to the lower end of fleachlofthelocking members 102 is a pinion 113; this pinion meshing with anddriven by the gear. sectorv 10,6; "At the upper end of the looking members 102 are formed ,1 heads 114, these T headsengaging with the surfaces 103 on the cover-holding scribed.

In order to positively insure. that the locking members 102 will not be-rotated until the covercarrying-member 61 is in. its lowermost position, I have attached to one of the locking members 102, a member ina cavity 121in'the bearing member bracket 112 and in this. memberlZO-I arrange a vertically movable spring-pressed plunger 122. locking members 102, the upper end of the spring-' pressed plunger 122 engaging in the, lower end' of atvertical hole 123 in the bearing member 112.

In the unlocked position ofthe 4 Also freely slidable in the hole12 3 is a plun ger 124, the upper end of which lies in the path of movement of spring-pressed plunger 124' carried by the cover holding member 61. The cover holding member 61 in its movement to closing position brings the spring-pressed plunger 124' carrieditherebyinto engagement with the top end of the plunger 124 and when the cover holding member 61 is in its lowermost position, the lower end of the 'plunger 124 will be engaged with the upper end of the spring pressed plunger 122 and will have moved the same out of engagement with the lower-end of the hole 123. Whenthis occurs, it will be possible to rotate the locking mem bers 102 and move the locking members 114 thereon into engagement with the surface 103 above described. Each of the pressure cavities '52 is connected by pipes 115 and 116 to a pipe 117 leading to any suitable source of fluid supply chine is a lever 128, and the rear end of such 7 blocks 136.

lever has rotatably mounted thereon a cam roller 129. The cam roller 129 engages with a cam comprising relatively movable elements 129' and 130. These'element's 129' and 130 are adjustable with respect to each other in order to vary the.

time of operation of the inlet valve 118 and the two elements 129' and 130 are held in adjusted position by bolts 131. Pivotally mounted on the lever 128 is a, member 132, the upper end of which is adapted to engage with the lower endof the valve stem '125. Also forming part of the element 132 is a cylindrical member 133 adapted to 134. I This forked niember 134 is secured to one end of a shaft 135 that is slidably mounted in suitable bearings on the other side of the platen 12. Adjacent the end of the sliding shaft 135, remote from the forked member 134 are'spaced blocks 136. Secured to the lower extended end of the adjacent member 102 by pin or screw 137 is a collar 138 and extending upwardly from such collar 138 is a pin 139 arranged to be brought into engagement with one or the other of the This construction not only insures operation of the inlet valve 1l8,-but also insures that such valve will only be operated at the right time. The locking member 102, as above described, can only operate when the cover carrying member 61 is in its lowermost position'and the rotation of the locking member 102 will move.

the sliding shaft 135 in such a direction asto have the forked member134'move the member 132 mounted on the lever 128'into operative position beneath the valvestem 125. The cam roller 129 on the lever 128'will rotate the lever on the shaft '127 and bring the member 132 into engagement with the valve stem' 125' to operate the valve 118. As the countershaft 20 rotates this rotation.together with the cam 129 determines mounted on the shaft 141 is a lever 142, carrying at its free end a cam roller143i This cam'roller engages with a cam 144 secured to the counter shaft 20. The upper faceof the lever 142 is adapted to be brought into engagement periodically with the valve stem145 of the exhaust valve 119.

It will be understood of course that the cam elements 129'-130 and thecam 144 are so arranged I with respect to each other on the counter shaft 20. that the inlet and exhaust valve-118 and 119, respectively, will not open at the same instant, that is the cams are'so arranged that the inlet valve is opened at the. proper time andfor the proper length of time in the cyclelof operations and also the exhaust valve 119 isoperated at the proper time to reduce or exhaust the pressure from within the pressure cavities. f The operation of the machineiiszas followsz The operatorv places the unvulcam'zed last'edboot or shoe 67 within the pressure cavity. 52 .:and against thesurfaceof the-rubber insert 68a,-as clearly shown in Fig: 5. It will'be assumed that the heel and 'sole'positioning elements 77 have been adjusted for the size and shape ofshoeto be operated. upon. The'operator'will now move thelever 50 so as to release thethrow-out cam 56 from the roller 36 and will then operate the lever 34 to move the clutch element-23 into en-" plunger 124 downwardly so as to release the spring pressed plunger 122 carried by the member 120 permitting the lever 107 to be operated'by .the

cam to move thegear segments 106Yso as to rotate the locking members 102- and bring the members 114 thereon into engagement with the surfaces 103, thus lockingthe cover 73 and cover holding member 61 in proper position. I This ro= tation of the locking members 102, brought the pin 139 carried by one of suchmembers into engagement with one of the blocks 136androtated 1 the member 132 into operative position with rela into position to operate the inletvalve 118 and fluid under pressure passes fro'm thepipe 117 through the pipe and into the'pressure cavities 52. Asthe pressure builds up within the cavity, the diaphragm 68 and the insert'68 assume the position shown in Fig. 7 and pressure is applied-to all parts of the boot or's'hoe- 67 simultaneously and'equallyj v As the counter shaft-20 continues its rotation the cam 144 will control the lever- 142 to operate the exhaust valve 119 relieving thepressure with in the pressure cavities 52 and'allowingthe diaphragm 68 and ins'ert'68 to reassume the posi-f tion shown in Fig. 5. v The camsllo'will now-operate to rotate the shaft 105'thus rotating the locking members 102 and releasing the members 114 thereon from" the surfaces 103... .jThe 'continned rotation of the counter shaft will now cause the cam 168, by the medium of the lever 64,v

to move the cover-holdingmember 61in a clock-, wisedirectionuntil it assumes theposition shown in Fig. 1. a After this occurs, the roller 36 on the clutch member'23 will engage with the; cam 45 and said clutchmember will moveout of engagement, with't-he clutch member 19 and allparts of the machine will be brought to rest preparatory to going through another cycle of operations on another boot or shoe 6'7.

Having thus described my invention what I claim and desire to protect by Letters Patent is:

1. An improved foxing and upper pressing ma chine, comprising a pressure casing, a diaphragm, normally occupying a position against the walls of the casing, a sponge rubber insert in engagement with the diaphragm and extending over the major portion thereof, said diaphragm and insert forming a recess for a boot or shoe in process of manufacture, sole and heel engaging stops for holding the boot or shoe in position in the recess, and means for applying fluid pressure to the pressure casing to force the diaphragm and insert into intimate engagement with the entire upper and a predetermined portion of the outsole of the boot or shoe.

2. An improved foxing and upper pressing machine, comprising a pressure casing, a diaphragm and a sponge rubber insert in engagement with each other and normally occupying a position against the walls of the casing, said diaphragm and insert forming a recess to receive an inverted boot or shoe in process of manufacture, means for engaging the bottom of the boot or shoe when in position in the recess, and means for applying fluid pressure to the pressure casing to force the insert into intimate engagement with the entire upper and a predetermined portion of the outsole of the boot or shoe.

3. In an improved foxing and upper pressing machine, the combination of a casing having a recess formed therein of substantially the shape of a rubber boot or shoe, a diaphragm disposed therein and clamped at its edge to the open end of the recess, an elastic and compressible insert in engagement with the outer surface of the diaphragm, a plurality of heel and sole engaging mined portion of the bottom of the boot or shoe.

4. In an improved foxing and upper pressing machine, the combination of a casing having, an approximately shoe shaped recess formed therein, a diaphragm having normally the contour of the walls of the recess, means for clamping the peripheral edge of the diaphragm adjacent to the open end of the recess, said diaphragm and recess forming a fluid pressure chamber, means for applying fluid under pressure to the chamber, a resilient and compressible insert in engagement with the outer surface of the diaphragm, and forming a bed on which may rest the top end of a last carrying a rubber boot or shoe in process of manufacture, stops for engaging with the bottom of a lasted boot or shoe for maintaining the same within the recess, said insert engaging with the entire upper and a predetermined portion of the bottom of the lasted boot or shoe upon the application of fiuid under pressure to the pressure chamber. I

5. In a footwear pressing machine, a pressure casing having therein a flexible diaphragm, a movable closure for the casing provided with adjustable means for engaging a footwear article disposed within the casing, locking means for maintaining'said closure in closed position, a stop for preventing actuation of said locking means, and means for successively actuating said 010- sure, releasing said stop, actuating said locking means, and applying fluid under pressure to said diaphragm to press a footwear article.

EDWARD A. WILLEY. 

